Mixing device



UNTTED STATES PATENT carica. CROCKER E. SANFORD, OF BALTIMORE, MARYLAND, ASSIGNOR, BY DIRECT ALNDMESNE I yASSIGNMENTS, T0 THE OLD DOMINION SPECIALTY C0., INC., OF BALTIMORE, IlLlIARY-nu v LAND, A. CORPORATION OF MARYLAND.

' MIXING DEVICE.

Applicationled Juuly 19, 1918. Serial No. 245,710.

To all whom t may concern:

Be it known that I, CRocKER H. SANFORD, a citizen of the United States, residing in the city of Baltimore and State of Maryland, have invented new and useful. Improvements in Mixing Devices, of which the following is a specification.

My present invention pertains to devices for mixing or commingling fluids, and consists in a mixing device designed more especially for incorporation in the gas and water mixing apparatus constituting the subject of my contemporary application led April 18, 1919, SerialA Non 291,07 8, though it is to be understood that the said mixing device is adapted to be used to advantage in various other connections. AThe object'ofmy present invention is to provide a mixer calculated to handle fluids under pressure and constructed in such manner as to conduct the fluids in company through a tortuous course, meanwhile retarding and reducing the same to thin films and small jets and battering Athe same against opposed abutments, all with a view to assuring intimate contact of the fluids and thorough commingling thereof With'the foregoing in mind the invention will be fully understood from the following description and claims when read in connection with the drawings, forming part hereof, in which: l

Figure 1 is Va diametrical section of the mixer constituting the' best practical embodiment of my invention of which I am ysurrounding said nozzle, a preferably concavo-'convex baille 18 opposed to and spaced from said orifice and having its edge closely arranged to wall or partition 17 so as to afford between the two a minute passage 19,

three more or less spaced walls 20 surrounding the baie and each having one or more minute apertures or passages 21, and an annular wall 22 depending from the margi-v ynal edge of the partition 17 and having a minute space 23 between its lower edge and Specication of Letters Patent.

`mingling action.

PatenteaJan. 13, 1920...'

the opposed wall of the casing. Minute apertures might be employed in lieu of the v said space 23, though I prefer the latter. The wall 22 is preferably a continuationof the outer wall 20, and an annular space 24 is formed between the said outer wall 20-22, and the adjacent portion of the casing wall.

The mixer is designed more especially for .use in conjunction with a pipe 1 from a source of carbonio acid gas supply and a plpe 2 from a street main or other source of water supply. Communication between- -the`pipe 1 and the interior of casing 14 is l' controlled by a valve 12, and intermediateV the pipe 2 and the nozzle 15 a non-return valve 8 is provided in order to prevent carbonated water from aecting the character of the water conducted in the several pipes of a house. l

My` novel mixer is designed to bring about thorough commingling of fluids, espe. cially water and gas, or thorough impregnation of the former with the latter, and when it is remembered that the water and gas enter the lower end of the nozzle 15 together, the eiciency of the mixer will be readily appreciated when it is stated .that

the Column 0f Water and gas is contracted by the orifice 16 and jetted against and spread over the concave surface of the baie 18 which contributes materially to the com- The waterand gas are then carried in the form of a thin film outwardly through the space 19 which con-4 tributes tothe commmgling action after which the water "and gas are carried in a tortuous manner through the'iapertures' or passages of the annular walls and between saidwalls and then through the" annular space 24 and the passage 23 into the chamber of the mixer that communicates with the discharge orifice 9. In communication with the orifice 9 is a pipe 9a which preferably leads to a valved outlet as shown in my -contemporary application hereinbefore cited. Incidental to the lateral movement of the water and gas it will ybe noted that lthe same will first Abe jetted throughA the passage 19, and then through' the apertures 21 of the inner wall 20 againstA the imperforate portion of the intermediate wall 20, then after passing downwardly will vbe jetted through the apertures 2,1 of the intermetions violently against abutments with the result that when the water and as reach the discharge chamber of the mlxer they will be commingled to a high degree of intimacy. 4

The mixer is designed more especially for use in a soda water dispensing apparatus.

HavingY described my invention what -I claim and desire to secure by Letters-Patent is: v

1. A fluid mixing device, corriprising a casing having a chamberin which are inlet orifices forfluidsA and .also having an outlet orifice', and also havlng intermediate said chamber and the outlet orice a nozzle, a

baiiie opposed to the eduction orifice Vof the nozzle and to a wall around the nozzle, and spaced walls grouped about the baille and having minute passages at staggered points.,

In this whereby the fluids are reduced to {ilms and jets and are battered against imperforate portions of some of the walls.

2. A fluid mixing device, comprising a casing having a chamber Iin which are inlet orifices for fluids and also having an outlet orifice, and also having intermediate said chamber and the outlet orifice a nozzle, a concavo-convex baffle opposed to the .eduction orifice of the nozzle and to a wall 'around the nozzle, and spaced walls grouped about the bafiiev and having minute passages at staggered points whereby the fluids vare reduced to Elms or jets and are battered against imperforate portions of some of the walls.

3. A mixing device, comprising a casing having a chamber in which are inlet orifices for fluids and also having an outlet orifice, a nozzle secured in the casing in communication withthe chamber and the outlet oriice and having a contracted discharge, a wall tsurrounding said nozzle, a concavoconvex baffle arranged withits concave surface opposed tothe discharge of the nozzle Y and its edge slightly spaced from said wall, and annular spaced walls surrounding the baiiie and having minute passages at staggered points.

In testimony whereof I affix -lny signature.

CROCKER H. SANFORD. 

